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Schematic representation of the two methods with which to assemble a fission bomb (see nuclear weapon design for more information). Image File history File links Commons-logo. ...
The mushroom cloud of the atomic bombing of Nagasaki, Japan, 1945, rose some 18 km (11 mi) above the hypocenter. ... An early stage in the Trinity fireball. ... A nuclear fireball lights up the night in a United States nuclear test. ... The following is a timeline of the Manhattan Project, the effort by the United States, United Kingdom, and Canada to develop the first nuclear weapons for use during World War II. The following includes a number of events prior to the official formation of the Manhattan Project as the Manhattan... Gun-type fission weapons are fission-based nuclear weapons whose design assembles their fissile material into a supercritical mass by the use of the gun method: shooting one piece of sub-critical material into another. ...